FK-4 RPZ backflow preventer outlet type BA

figure 367 01 025

1. to protect drinking water against backflow of fluids up to and including category 4 according DIN EN 1717 / DIN 1988-100
2. suitable for connection to the elbow wallplates
3. wetted metal parts made from dezincification-free and corrosion-resistant gunmetal, resistant against aggressive water

Product Features

  • to protect drinking water against backflow of fluids up to and including category 4 according DIN EN 1717 / DIN 1988-100
  • suitable for connection to the elbow wallplates
  • wetted metal parts made from dezincification-free and corrosion-resistant gunmetal, resistant against aggressive water
  • inlet male pipe thread
  • gunmetal cone
  • EPDM-seat gasket
  • with stainless steel mesh at inlet
  • integrated differential pressure controlled and low-maintenance protection cartridge including CV
  • with controllable reduced pressure zone
  • test ports for connection of test valves for maintenance
  • plastic drain connection according EN 1717
  • with a black handwheel
  • free from dead spots
  • for horizontal installation, drain valve down
  • with isolating function for maintenance
  • discharge side G 1 1/4 according to ISO 228 for the connection of a hose coupling
  • Open position indicator
  • maintenance requirements in accordance with DIN EN 806-5 must be complied

Standards and Approvals

  • DVGW approval
  • KIWA approval
  • BELGAQUA approval
  • VA approval
  • plastic parts with KTW and W 270 approval
  • according to DVGW W 408
  • according to accepted materials list from German environmental agency
  • soundproofing certification according to DIN EN ISO 3822 Class 2
  • DIN EN 10226 / EN 1717

Technical data

  • pressure rating PN 10
  • max. operating temperature 60°C
  • short-term peak temperature 65°C

Part no. DN A1 A2 A3 D1
(mm)
D2
(mm)
H1
(mm)
H2
(mm)
L1
(mm)
L2
(mm)
L3
(mm)
nominal
connection
diameter, waste water (mm)
kg
3670102500 25 R 1 G 1 1/4 G 1/4 70 50 195.5 37 57.5 101.5 86 50 1.9